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<h1 id="sec_name">
<span data-if="hdevelop" style="display:inline;">open_socket_accept</span><span data-if="c" style="display:none;">T_open_socket_accept</span><span data-if="cpp" style="display:none;">OpenSocketAccept</span><span data-if="dotnet" style="display:none;">OpenSocketAccept</span><span data-if="python" style="display:none;">open_socket_accept</span> (算子名称)</h1>
<h2>名称</h2>
<p><code><span data-if="hdevelop" style="display:inline;">open_socket_accept</span><span data-if="c" style="display:none;">T_open_socket_accept</span><span data-if="cpp" style="display:none;">OpenSocketAccept</span><span data-if="dotnet" style="display:none;">OpenSocketAccept</span><span data-if="python" style="display:none;">open_socket_accept</span></code> — 打开接受连接请求的套接字。</p>
<h2 id="sec_synopsis">参数签名</h2>
<div data-if="hdevelop" style="display:inline;">
<p>
<code><b>open_socket_accept</b>( :  : <a href="#Port"><i>Port</i></a>, <a href="#GenParamName"><i>GenParamName</i></a>, <a href="#GenParamValue"><i>GenParamValue</i></a> : <a href="#AcceptingSocket"><i>AcceptingSocket</i></a>)</code></p>
</div>
<div data-if="c" style="display:none;">
<p>
<code>Herror <b>T_open_socket_accept</b>(const Htuple <a href="#Port"><i>Port</i></a>, const Htuple <a href="#GenParamName"><i>GenParamName</i></a>, const Htuple <a href="#GenParamValue"><i>GenParamValue</i></a>, Htuple* <a href="#AcceptingSocket"><i>AcceptingSocket</i></a>)</code></p>
</div>
<div data-if="cpp" style="display:none;">
<p>
<code>void <b>OpenSocketAccept</b>(const HTuple&amp; <a href="#Port"><i>Port</i></a>, const HTuple&amp; <a href="#GenParamName"><i>GenParamName</i></a>, const HTuple&amp; <a href="#GenParamValue"><i>GenParamValue</i></a>, HTuple* <a href="#AcceptingSocket"><i>AcceptingSocket</i></a>)</code></p>
<p>
<code>void <a href="HSocket.html">HSocket</a>::<b>HSocket</b>(Hlong <a href="#Port"><i>Port</i></a>, const HTuple&amp; <a href="#GenParamName"><i>GenParamName</i></a>, const HTuple&amp; <a href="#GenParamValue"><i>GenParamValue</i></a>)</code></p>
<p>
<code>void <a href="HSocket.html">HSocket</a>::<b>HSocket</b>(Hlong <a href="#Port"><i>Port</i></a>, const HString&amp; <a href="#GenParamName"><i>GenParamName</i></a>, const HString&amp; <a href="#GenParamValue"><i>GenParamValue</i></a>)</code></p>
<p>
<code>void <a href="HSocket.html">HSocket</a>::<b>HSocket</b>(Hlong <a href="#Port"><i>Port</i></a>, const char* <a href="#GenParamName"><i>GenParamName</i></a>, const char* <a href="#GenParamValue"><i>GenParamValue</i></a>)</code></p>
<p>
<code>void <a href="HSocket.html">HSocket</a>::<b>HSocket</b>(Hlong <a href="#Port"><i>Port</i></a>, const wchar_t* <a href="#GenParamName"><i>GenParamName</i></a>, const wchar_t* <a href="#GenParamValue"><i>GenParamValue</i></a>)  <span class="signnote">
            (
            Windows only)
          </span></code></p>
<p>
<code>void <a href="HSocket.html">HSocket</a>::<b>OpenSocketAccept</b>(Hlong <a href="#Port"><i>Port</i></a>, const HTuple&amp; <a href="#GenParamName"><i>GenParamName</i></a>, const HTuple&amp; <a href="#GenParamValue"><i>GenParamValue</i></a>)</code></p>
<p>
<code>void <a href="HSocket.html">HSocket</a>::<b>OpenSocketAccept</b>(Hlong <a href="#Port"><i>Port</i></a>, const HString&amp; <a href="#GenParamName"><i>GenParamName</i></a>, const HString&amp; <a href="#GenParamValue"><i>GenParamValue</i></a>)</code></p>
<p>
<code>void <a href="HSocket.html">HSocket</a>::<b>OpenSocketAccept</b>(Hlong <a href="#Port"><i>Port</i></a>, const char* <a href="#GenParamName"><i>GenParamName</i></a>, const char* <a href="#GenParamValue"><i>GenParamValue</i></a>)</code></p>
<p>
<code>void <a href="HSocket.html">HSocket</a>::<b>OpenSocketAccept</b>(Hlong <a href="#Port"><i>Port</i></a>, const wchar_t* <a href="#GenParamName"><i>GenParamName</i></a>, const wchar_t* <a href="#GenParamValue"><i>GenParamValue</i></a>)  <span class="signnote">
            (
            Windows only)
          </span></code></p>
</div>
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<div data-if="dotnet" style="display:none;">
<p>
<code>static void <a href="HOperatorSet.html">HOperatorSet</a>.<b>OpenSocketAccept</b>(<a href="HTuple.html">HTuple</a> <a href="#Port"><i>port</i></a>, <a href="HTuple.html">HTuple</a> <a href="#GenParamName"><i>genParamName</i></a>, <a href="HTuple.html">HTuple</a> <a href="#GenParamValue"><i>genParamValue</i></a>, out <a href="HTuple.html">HTuple</a> <a href="#AcceptingSocket"><i>acceptingSocket</i></a>)</code></p>
<p>
<code>public <a href="HSocket.html">HSocket</a>(int <a href="#Port"><i>port</i></a>, <a href="HTuple.html">HTuple</a> <a href="#GenParamName"><i>genParamName</i></a>, <a href="HTuple.html">HTuple</a> <a href="#GenParamValue"><i>genParamValue</i></a>)</code></p>
<p>
<code>public <a href="HSocket.html">HSocket</a>(int <a href="#Port"><i>port</i></a>, string <a href="#GenParamName"><i>genParamName</i></a>, string <a href="#GenParamValue"><i>genParamValue</i></a>)</code></p>
<p>
<code>void <a href="HSocket.html">HSocket</a>.<b>OpenSocketAccept</b>(int <a href="#Port"><i>port</i></a>, <a href="HTuple.html">HTuple</a> <a href="#GenParamName"><i>genParamName</i></a>, <a href="HTuple.html">HTuple</a> <a href="#GenParamValue"><i>genParamValue</i></a>)</code></p>
<p>
<code>void <a href="HSocket.html">HSocket</a>.<b>OpenSocketAccept</b>(int <a href="#Port"><i>port</i></a>, string <a href="#GenParamName"><i>genParamName</i></a>, string <a href="#GenParamValue"><i>genParamValue</i></a>)</code></p>
</div>
<div data-if="python" style="display:none;">
<p>
<code>def <b>open_socket_accept</b>(<a href="#Port"><i>port</i></a>: int, <a href="#GenParamName"><i>gen_param_name</i></a>: MaybeSequence[str], <a href="#GenParamValue"><i>gen_param_value</i></a>: MaybeSequence[Union[float, int, str]]) -&gt; HHandle</code></p>
</div>
<h2 id="sec_description">描述</h2>
<p><code><span data-if="hdevelop" style="display:inline">open_socket_accept</span><span data-if="c" style="display:none">open_socket_accept</span><span data-if="cpp" style="display:none">OpenSocketAccept</span><span data-if="com" style="display:none">OpenSocketAccept</span><span data-if="dotnet" style="display:none">OpenSocketAccept</span><span data-if="python" style="display:none">open_socket_accept</span></code> opens a socket that will accept incoming
connection requests.  This operator is the
necessary first step in the establishment of a communication channel
between two HALCON processes.  The socket listens for incoming
connection requests on the port number given by <a href="#Port"><i><code><span data-if="hdevelop" style="display:inline">Port</span><span data-if="c" style="display:none">Port</span><span data-if="cpp" style="display:none">Port</span><span data-if="com" style="display:none">Port</span><span data-if="dotnet" style="display:none">port</span><span data-if="python" style="display:none">port</span></code></i></a>.
</p>
<p>It is possible to specify a <a href="#Port"><i><code><span data-if="hdevelop" style="display:inline">Port</span><span data-if="c" style="display:none">Port</span><span data-if="cpp" style="display:none">Port</span><span data-if="com" style="display:none">Port</span><span data-if="dotnet" style="display:none">port</span><span data-if="python" style="display:none">port</span></code></i></a> of 0, triggering
implementation-defined behavior.
On most operating systems, using a port number of 0 instructs the
operating system to choose a free port randomly.
</p>
<p>The following parameters can be set for <a href="#GenParamName"><i><code><span data-if="hdevelop" style="display:inline">GenParamName</span><span data-if="c" style="display:none">GenParamName</span><span data-if="cpp" style="display:none">GenParamName</span><span data-if="com" style="display:none">GenParamName</span><span data-if="dotnet" style="display:none">genParamName</span><span data-if="python" style="display:none">gen_param_name</span></code></i></a>.
</p>
<dl class="generic">


<dt><b><i><span data-if="hdevelop" style="display:inline">'protocol'</span><span data-if="c" style="display:none">"protocol"</span><span data-if="cpp" style="display:none">"protocol"</span><span data-if="com" style="display:none">"protocol"</span><span data-if="dotnet" style="display:none">"protocol"</span><span data-if="python" style="display:none">"protocol"</span></i>:</b></dt>
<dd>
<p>

Specifies the protocol to be used. The <i><span data-if="hdevelop" style="display:inline">'HALCON'</span><span data-if="c" style="display:none">"HALCON"</span><span data-if="cpp" style="display:none">"HALCON"</span><span data-if="com" style="display:none">"HALCON"</span><span data-if="dotnet" style="display:none">"HALCON"</span><span data-if="python" style="display:none">"HALCON"</span></i> protocol without
a specific address family, will use IPv4 or IPv6 automatically depending
on the network configuration of the computer. To use a specific address
family a '4' or '6' (for IPv4 or IPv6, respectively) must be appended to
the name of the protocol. For example, <i><span data-if="hdevelop" style="display:inline">'HALCON4'</span><span data-if="c" style="display:none">"HALCON4"</span><span data-if="cpp" style="display:none">"HALCON4"</span><span data-if="com" style="display:none">"HALCON4"</span><span data-if="dotnet" style="display:none">"HALCON4"</span><span data-if="python" style="display:none">"HALCON4"</span></i>
designates a HALCON connection over IPv4.
Possible values for a generic socket communication are <i><span data-if="hdevelop" style="display:inline">'UDP'</span><span data-if="c" style="display:none">"UDP"</span><span data-if="cpp" style="display:none">"UDP"</span><span data-if="com" style="display:none">"UDP"</span><span data-if="dotnet" style="display:none">"UDP"</span><span data-if="python" style="display:none">"UDP"</span></i> and
<i><span data-if="hdevelop" style="display:inline">'TCP'</span><span data-if="c" style="display:none">"TCP"</span><span data-if="cpp" style="display:none">"TCP"</span><span data-if="com" style="display:none">"TCP"</span><span data-if="dotnet" style="display:none">"TCP"</span><span data-if="python" style="display:none">"TCP"</span></i> which also support appended '4' and '6'.
Both communication partners must use the same protocol.
To exchange data using generic sockets use <a href="send_data.html"><code><span data-if="hdevelop" style="display:inline">send_data</span><span data-if="c" style="display:none">send_data</span><span data-if="cpp" style="display:none">SendData</span><span data-if="com" style="display:none">SendData</span><span data-if="dotnet" style="display:none">SendData</span><span data-if="python" style="display:none">send_data</span></code></a> and
<a href="receive_data.html"><code><span data-if="hdevelop" style="display:inline">receive_data</span><span data-if="c" style="display:none">receive_data</span><span data-if="cpp" style="display:none">ReceiveData</span><span data-if="com" style="display:none">ReceiveData</span><span data-if="dotnet" style="display:none">ReceiveData</span><span data-if="python" style="display:none">receive_data</span></code></a> only.</p>
<p>
<span class="pardesc"><span class="parcat">Default:
      </span></span> <i><span data-if="hdevelop" style="display:inline">'HALCON'</span><span data-if="c" style="display:none">"HALCON"</span><span data-if="cpp" style="display:none">"HALCON"</span><span data-if="com" style="display:none">"HALCON"</span><span data-if="dotnet" style="display:none">"HALCON"</span><span data-if="python" style="display:none">"HALCON"</span></i>
</p>
</dd>

<dt><b><i><span data-if="hdevelop" style="display:inline">'adress'</span><span data-if="c" style="display:none">"adress"</span><span data-if="cpp" style="display:none">"adress"</span><span data-if="com" style="display:none">"adress"</span><span data-if="dotnet" style="display:none">"adress"</span><span data-if="python" style="display:none">"adress"</span></i>:</b></dt>
<dd>
<p>

Instructs the socket to accept only connection requests addressed to a
specific address. This address is specified as either an IPv4 or IPv6
address in numerical form, or a hostname. For example, <i><span data-if="hdevelop" style="display:inline">'localhost'</span><span data-if="c" style="display:none">"localhost"</span><span data-if="cpp" style="display:none">"localhost"</span><span data-if="com" style="display:none">"localhost"</span><span data-if="dotnet" style="display:none">"localhost"</span><span data-if="python" style="display:none">"localhost"</span></i>
would instruct the socket to accept only connections addressed to the
address <i><span data-if="hdevelop" style="display:inline">'localhost'</span><span data-if="c" style="display:none">"localhost"</span><span data-if="cpp" style="display:none">"localhost"</span><span data-if="com" style="display:none">"localhost"</span><span data-if="dotnet" style="display:none">"localhost"</span><span data-if="python" style="display:none">"localhost"</span></i>, which normally maps to the local loopback
network interface <i><span data-if="hdevelop" style="display:inline">'127.0.0.1'</span><span data-if="c" style="display:none">"127.0.0.1"</span><span data-if="cpp" style="display:none">"127.0.0.1"</span><span data-if="com" style="display:none">"127.0.0.1"</span><span data-if="dotnet" style="display:none">"127.0.0.1"</span><span data-if="python" style="display:none">"127.0.0.1"</span></i>.
</p>
</dd>

<dt><b><i><span data-if="hdevelop" style="display:inline">'timeout'</span><span data-if="c" style="display:none">"timeout"</span><span data-if="cpp" style="display:none">"timeout"</span><span data-if="com" style="display:none">"timeout"</span><span data-if="dotnet" style="display:none">"timeout"</span><span data-if="python" style="display:none">"timeout"</span></i>:</b></dt>
<dd>
<p>

Sets a timeout for this socket. The timeout is given in seconds or as
the string <i><span data-if="hdevelop" style="display:inline">'infinite'</span><span data-if="c" style="display:none">"infinite"</span><span data-if="cpp" style="display:none">"infinite"</span><span data-if="com" style="display:none">"infinite"</span><span data-if="dotnet" style="display:none">"infinite"</span><span data-if="python" style="display:none">"infinite"</span></i>. It is used especially as timeout and
waiting mode in a following <a href="socket_accept_connect.html"><code><span data-if="hdevelop" style="display:inline">socket_accept_connect</span><span data-if="c" style="display:none">socket_accept_connect</span><span data-if="cpp" style="display:none">SocketAcceptConnect</span><span data-if="com" style="display:none">SocketAcceptConnect</span><span data-if="dotnet" style="display:none">SocketAcceptConnect</span><span data-if="python" style="display:none">socket_accept_connect</span></code></a> call with
the parameter <code><span data-if="hdevelop" style="display:inline">Wait</span><span data-if="c" style="display:none">Wait</span><span data-if="cpp" style="display:none">Wait</span><span data-if="com" style="display:none">Wait</span><span data-if="dotnet" style="display:none">wait</span><span data-if="python" style="display:none">wait</span></code> set to <i><span data-if="hdevelop" style="display:inline">'auto'</span><span data-if="c" style="display:none">"auto"</span><span data-if="cpp" style="display:none">"auto"</span><span data-if="com" style="display:none">"auto"</span><span data-if="dotnet" style="display:none">"auto"</span><span data-if="python" style="display:none">"auto"</span></i>.
</p>
</dd>

<dt><b><i><span data-if="hdevelop" style="display:inline">'string_encoding'</span><span data-if="c" style="display:none">"string_encoding"</span><span data-if="cpp" style="display:none">"string_encoding"</span><span data-if="com" style="display:none">"string_encoding"</span><span data-if="dotnet" style="display:none">"string_encoding"</span><span data-if="python" style="display:none">"string_encoding"</span></i>:</b></dt>
<dd>
<p>

Sets the string encoding that is expected when sending and receiving
strings with this socket. It is used for <a href="send_tuple.html"><code><span data-if="hdevelop" style="display:inline">send_tuple</span><span data-if="c" style="display:none">send_tuple</span><span data-if="cpp" style="display:none">SendTuple</span><span data-if="com" style="display:none">SendTuple</span><span data-if="dotnet" style="display:none">SendTuple</span><span data-if="python" style="display:none">send_tuple</span></code></a> and
<a href="receive_tuple.html"><code><span data-if="hdevelop" style="display:inline">receive_tuple</span><span data-if="c" style="display:none">receive_tuple</span><span data-if="cpp" style="display:none">ReceiveTuple</span><span data-if="com" style="display:none">ReceiveTuple</span><span data-if="dotnet" style="display:none">ReceiveTuple</span><span data-if="python" style="display:none">receive_tuple</span></code></a> as well as <a href="send_data.html"><code><span data-if="hdevelop" style="display:inline">send_data</span><span data-if="c" style="display:none">send_data</span><span data-if="cpp" style="display:none">SendData</span><span data-if="com" style="display:none">SendData</span><span data-if="dotnet" style="display:none">SendData</span><span data-if="python" style="display:none">send_data</span></code></a> and <a href="receive_data.html"><code><span data-if="hdevelop" style="display:inline">receive_data</span><span data-if="c" style="display:none">receive_data</span><span data-if="cpp" style="display:none">ReceiveData</span><span data-if="com" style="display:none">ReceiveData</span><span data-if="dotnet" style="display:none">ReceiveData</span><span data-if="python" style="display:none">receive_data</span></code></a>.
When the protocol <i><span data-if="hdevelop" style="display:inline">'HALCON'</span><span data-if="c" style="display:none">"HALCON"</span><span data-if="cpp" style="display:none">"HALCON"</span><span data-if="com" style="display:none">"HALCON"</span><span data-if="dotnet" style="display:none">"HALCON"</span><span data-if="python" style="display:none">"HALCON"</span></i> is used, the setting only has effect on
connections to HALCON versions prior to 18.11. If the connection partner
is detected to have HALCON version 18.11 or newer, UTF-8 is used to
encode tuples.
</p>
</dd>

<dt><b><i><span data-if="hdevelop" style="display:inline">'reuseaddr'</span><span data-if="c" style="display:none">"reuseaddr"</span><span data-if="cpp" style="display:none">"reuseaddr"</span><span data-if="com" style="display:none">"reuseaddr"</span><span data-if="dotnet" style="display:none">"reuseaddr"</span><span data-if="python" style="display:none">"reuseaddr"</span></i>:</b></dt>
<dd>
<p>

Controls the setting of the socket option <code>SO_REUSEADDR</code>.
When <i><span data-if="hdevelop" style="display:inline">'reuseaddr'</span><span data-if="c" style="display:none">"reuseaddr"</span><span data-if="cpp" style="display:none">"reuseaddr"</span><span data-if="com" style="display:none">"reuseaddr"</span><span data-if="dotnet" style="display:none">"reuseaddr"</span><span data-if="python" style="display:none">"reuseaddr"</span></i> is set to <i><span data-if="hdevelop" style="display:inline">'false'</span><span data-if="c" style="display:none">"false"</span><span data-if="cpp" style="display:none">"false"</span><span data-if="com" style="display:none">"false"</span><span data-if="dotnet" style="display:none">"false"</span><span data-if="python" style="display:none">"false"</span></i>,
<code>SO_REUSEADDR</code> will not be set.
On Windows Systems, conflicting access on a single port will only be
detected, when <i><span data-if="hdevelop" style="display:inline">'reuseaddr'</span><span data-if="c" style="display:none">"reuseaddr"</span><span data-if="cpp" style="display:none">"reuseaddr"</span><span data-if="com" style="display:none">"reuseaddr"</span><span data-if="dotnet" style="display:none">"reuseaddr"</span><span data-if="python" style="display:none">"reuseaddr"</span></i> is set to <i><span data-if="hdevelop" style="display:inline">'false'</span><span data-if="c" style="display:none">"false"</span><span data-if="cpp" style="display:none">"false"</span><span data-if="com" style="display:none">"false"</span><span data-if="dotnet" style="display:none">"false"</span><span data-if="python" style="display:none">"false"</span></i>.</p>
<p>
<span class="pardesc"><span class="parcat">Default:
      </span></span> <i><span data-if="hdevelop" style="display:inline">'true'</span><span data-if="c" style="display:none">"true"</span><span data-if="cpp" style="display:none">"true"</span><span data-if="com" style="display:none">"true"</span><span data-if="dotnet" style="display:none">"true"</span><span data-if="python" style="display:none">"true"</span></i>
</p>
</dd>

<dt><b><i><span data-if="hdevelop" style="display:inline">'tls_enable'</span><span data-if="c" style="display:none">"tls_enable"</span><span data-if="cpp" style="display:none">"tls_enable"</span><span data-if="com" style="display:none">"tls_enable"</span><span data-if="dotnet" style="display:none">"tls_enable"</span><span data-if="python" style="display:none">"tls_enable"</span></i>:</b></dt>
<dd>
<p>

Controls the use of Transport Layer Security (TLS) for the new Socket.
When <i><span data-if="hdevelop" style="display:inline">'tls_enable'</span><span data-if="c" style="display:none">"tls_enable"</span><span data-if="cpp" style="display:none">"tls_enable"</span><span data-if="com" style="display:none">"tls_enable"</span><span data-if="dotnet" style="display:none">"tls_enable"</span><span data-if="python" style="display:none">"tls_enable"</span></i> is set to <i><span data-if="hdevelop" style="display:inline">'true'</span><span data-if="c" style="display:none">"true"</span><span data-if="cpp" style="display:none">"true"</span><span data-if="com" style="display:none">"true"</span><span data-if="dotnet" style="display:none">"true"</span><span data-if="python" style="display:none">"true"</span></i>, the created socket
will accept TLS secured connections only. Furthermore, both generic
parameters <i><span data-if="hdevelop" style="display:inline">'tls_private_key'</span><span data-if="c" style="display:none">"tls_private_key"</span><span data-if="cpp" style="display:none">"tls_private_key"</span><span data-if="com" style="display:none">"tls_private_key"</span><span data-if="dotnet" style="display:none">"tls_private_key"</span><span data-if="python" style="display:none">"tls_private_key"</span></i> and <i><span data-if="hdevelop" style="display:inline">'tls_certificate'</span><span data-if="c" style="display:none">"tls_certificate"</span><span data-if="cpp" style="display:none">"tls_certificate"</span><span data-if="com" style="display:none">"tls_certificate"</span><span data-if="dotnet" style="display:none">"tls_certificate"</span><span data-if="python" style="display:none">"tls_certificate"</span></i> must be
set, each with a path to the private certificate key and the path to the
public server certificate. Private key and server certificate must be
provided in PEM-format.</p>
<p>
<span class="pardesc"><span class="parcat">Default:
      </span></span> <i><span data-if="hdevelop" style="display:inline">'false'</span><span data-if="c" style="display:none">"false"</span><span data-if="cpp" style="display:none">"false"</span><span data-if="com" style="display:none">"false"</span><span data-if="dotnet" style="display:none">"false"</span><span data-if="python" style="display:none">"false"</span></i>
</p>
</dd>
</dl>
<p>The accepting socket is returned in <a href="#AcceptingSocket"><i><code><span data-if="hdevelop" style="display:inline">AcceptingSocket</span><span data-if="c" style="display:none">AcceptingSocket</span><span data-if="cpp" style="display:none">AcceptingSocket</span><span data-if="com" style="display:none">AcceptingSocket</span><span data-if="dotnet" style="display:none">acceptingSocket</span><span data-if="python" style="display:none">accepting_socket</span></code></i></a>.
<code><span data-if="hdevelop" style="display:inline">open_socket_accept</span><span data-if="c" style="display:none">open_socket_accept</span><span data-if="cpp" style="display:none">OpenSocketAccept</span><span data-if="com" style="display:none">OpenSocketAccept</span><span data-if="dotnet" style="display:none">OpenSocketAccept</span><span data-if="python" style="display:none">open_socket_accept</span></code> returns immediately without waiting for a request
from another process, which must be initiated by calling
<a href="open_socket_connect.html"><code><span data-if="hdevelop" style="display:inline">open_socket_connect</span><span data-if="c" style="display:none">open_socket_connect</span><span data-if="cpp" style="display:none">OpenSocketConnect</span><span data-if="com" style="display:none">OpenSocketConnect</span><span data-if="dotnet" style="display:none">OpenSocketConnect</span><span data-if="python" style="display:none">open_socket_connect</span></code></a>.  This allows multiple other processes to connect
to the particular HALCON process that calls <code><span data-if="hdevelop" style="display:inline">open_socket_accept</span><span data-if="c" style="display:none">open_socket_accept</span><span data-if="cpp" style="display:none">OpenSocketAccept</span><span data-if="com" style="display:none">OpenSocketAccept</span><span data-if="dotnet" style="display:none">OpenSocketAccept</span><span data-if="python" style="display:none">open_socket_accept</span></code>.  To
accept an incoming <i><span data-if="hdevelop" style="display:inline">'HALCON'</span><span data-if="c" style="display:none">"HALCON"</span><span data-if="cpp" style="display:none">"HALCON"</span><span data-if="com" style="display:none">"HALCON"</span><span data-if="dotnet" style="display:none">"HALCON"</span><span data-if="python" style="display:none">"HALCON"</span></i> or <i><span data-if="hdevelop" style="display:inline">'TCP'</span><span data-if="c" style="display:none">"TCP"</span><span data-if="cpp" style="display:none">"TCP"</span><span data-if="com" style="display:none">"TCP"</span><span data-if="dotnet" style="display:none">"TCP"</span><span data-if="python" style="display:none">"TCP"</span></i> connection request,
<a href="socket_accept_connect.html"><code><span data-if="hdevelop" style="display:inline">socket_accept_connect</span><span data-if="c" style="display:none">socket_accept_connect</span><span data-if="cpp" style="display:none">SocketAcceptConnect</span><span data-if="com" style="display:none">SocketAcceptConnect</span><span data-if="dotnet" style="display:none">SocketAcceptConnect</span><span data-if="python" style="display:none">socket_accept_connect</span></code></a> must be called to obtain a socket for the final
communication.</p>
<h2 id="sec_execution">运行信息</h2>
<ul>
  <li>多线程类型:可重入(与非独占操作符并行运行)。</li>
<li>多线程作用域:全局(可以从任何线程调用)。</li>
  <li>未经并行化处理。</li>
</ul>
<p>This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.</p>
<h2 id="sec_parameters">参数表</h2>
  <div class="par">
<div class="parhead">
<span id="Port" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Port</span><span data-if="c" style="display:none">Port</span><span data-if="cpp" style="display:none">Port</span><span data-if="com" style="display:none">Port</span><span data-if="dotnet" style="display:none">port</span><span data-if="python" style="display:none">port</span></code></b> (input_control)  </span><span>number <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">int</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (integer)</span><span data-if="dotnet" style="display:none"> (<i>int</i> / </span><span data-if="dotnet" style="display:none">long)</span><span data-if="cpp" style="display:none"> (<i>Hlong</i>)</span><span data-if="c" style="display:none"> (<i>Hlong</i>)</span></span>
</div>
<p class="pardesc">Port number.</p>
<p class="pardesc"><span class="parcat">Default:
      </span>3000</p>
<p class="pardesc"><span class="parcat">Suggested values:
      </span>3000, 4570</p>
<p class="pardesc"><span class="parcat">Value range:
      </span><code>1024
          ≤
        
    <span data-if="hdevelop" style="display:inline">Port</span>
    <span data-if="c" style="display:none">Port</span>
    <span data-if="cpp" style="display:none">Port</span>
    <span data-if="com" style="display:none">Port</span>
    <span data-if="dotnet" style="display:none">port</span>
    <span data-if="python" style="display:none">port</span>
    
          ≤
          65535</code></p>
<p class="pardesc"><span class="parcat">Minimum increment:
      </span>1</p>
<p class="pardesc"><span class="parcat">Recommended increment:
      </span>1</p>
</div>
  <div class="par">
<div class="parhead">
<span id="GenParamName" class="parname"><b><code><span data-if="hdevelop" style="display:inline">GenParamName</span><span data-if="c" style="display:none">GenParamName</span><span data-if="cpp" style="display:none">GenParamName</span><span data-if="com" style="display:none">GenParamName</span><span data-if="dotnet" style="display:none">genParamName</span><span data-if="python" style="display:none">gen_param_name</span></code></b> (input_control)  </span><span>attribute.name(-array) <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">MaybeSequence[str]</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (string)</span><span data-if="dotnet" style="display:none"> (<i>string</i>)</span><span data-if="cpp" style="display:none"> (<i>HString</i>)</span><span data-if="c" style="display:none"> (<i>char*</i>)</span></span>
</div>
<p class="pardesc">Names of the generic parameters that can be
adjusted for the socket.</p>
<p class="pardesc"><span class="parcat">Default:
      </span>[]</p>
<p class="pardesc"><span class="parcat">List of values:
      </span><span data-if="hdevelop" style="display:inline">'address'</span><span data-if="c" style="display:none">"address"</span><span data-if="cpp" style="display:none">"address"</span><span data-if="com" style="display:none">"address"</span><span data-if="dotnet" style="display:none">"address"</span><span data-if="python" style="display:none">"address"</span>, <span data-if="hdevelop" style="display:inline">'protocol'</span><span data-if="c" style="display:none">"protocol"</span><span data-if="cpp" style="display:none">"protocol"</span><span data-if="com" style="display:none">"protocol"</span><span data-if="dotnet" style="display:none">"protocol"</span><span data-if="python" style="display:none">"protocol"</span>, <span data-if="hdevelop" style="display:inline">'string_encoding'</span><span data-if="c" style="display:none">"string_encoding"</span><span data-if="cpp" style="display:none">"string_encoding"</span><span data-if="com" style="display:none">"string_encoding"</span><span data-if="dotnet" style="display:none">"string_encoding"</span><span data-if="python" style="display:none">"string_encoding"</span>, <span data-if="hdevelop" style="display:inline">'timeout'</span><span data-if="c" style="display:none">"timeout"</span><span data-if="cpp" style="display:none">"timeout"</span><span data-if="com" style="display:none">"timeout"</span><span data-if="dotnet" style="display:none">"timeout"</span><span data-if="python" style="display:none">"timeout"</span>, <span data-if="hdevelop" style="display:inline">'tls_certificate'</span><span data-if="c" style="display:none">"tls_certificate"</span><span data-if="cpp" style="display:none">"tls_certificate"</span><span data-if="com" style="display:none">"tls_certificate"</span><span data-if="dotnet" style="display:none">"tls_certificate"</span><span data-if="python" style="display:none">"tls_certificate"</span>, <span data-if="hdevelop" style="display:inline">'tls_enable'</span><span data-if="c" style="display:none">"tls_enable"</span><span data-if="cpp" style="display:none">"tls_enable"</span><span data-if="com" style="display:none">"tls_enable"</span><span data-if="dotnet" style="display:none">"tls_enable"</span><span data-if="python" style="display:none">"tls_enable"</span>, <span data-if="hdevelop" style="display:inline">'tls_private_key'</span><span data-if="c" style="display:none">"tls_private_key"</span><span data-if="cpp" style="display:none">"tls_private_key"</span><span data-if="com" style="display:none">"tls_private_key"</span><span data-if="dotnet" style="display:none">"tls_private_key"</span><span data-if="python" style="display:none">"tls_private_key"</span></p>
</div>
  <div class="par">
<div class="parhead">
<span id="GenParamValue" class="parname"><b><code><span data-if="hdevelop" style="display:inline">GenParamValue</span><span data-if="c" style="display:none">GenParamValue</span><span data-if="cpp" style="display:none">GenParamValue</span><span data-if="com" style="display:none">GenParamValue</span><span data-if="dotnet" style="display:none">genParamValue</span><span data-if="python" style="display:none">gen_param_value</span></code></b> (input_control)  </span><span>attribute.value(-array) <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">MaybeSequence[Union[float, int, str]]</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (string / </span><span data-if="hdevelop" style="display:inline">real / </span><span data-if="hdevelop" style="display:inline">integer)</span><span data-if="dotnet" style="display:none"> (<i>string</i> / </span><span data-if="dotnet" style="display:none">double / </span><span data-if="dotnet" style="display:none">int / </span><span data-if="dotnet" style="display:none">long)</span><span data-if="cpp" style="display:none"> (<i>HString</i> / </span><span data-if="cpp" style="display:none">double / </span><span data-if="cpp" style="display:none">Hlong)</span><span data-if="c" style="display:none"> (<i>char*</i> / </span><span data-if="c" style="display:none">double / </span><span data-if="c" style="display:none">Hlong)</span></span>
</div>
<p class="pardesc">Values of the generic parameters that can be
adjusted for the socket.</p>
<p class="pardesc"><span class="parcat">Default:
      </span>[]</p>
<p class="pardesc"><span class="parcat">Suggested values:
      </span>0, 3.0, <span data-if="hdevelop" style="display:inline">'infinite'</span><span data-if="c" style="display:none">"infinite"</span><span data-if="cpp" style="display:none">"infinite"</span><span data-if="com" style="display:none">"infinite"</span><span data-if="dotnet" style="display:none">"infinite"</span><span data-if="python" style="display:none">"infinite"</span>, <span data-if="hdevelop" style="display:inline">'HALCON'</span><span data-if="c" style="display:none">"HALCON"</span><span data-if="cpp" style="display:none">"HALCON"</span><span data-if="com" style="display:none">"HALCON"</span><span data-if="dotnet" style="display:none">"HALCON"</span><span data-if="python" style="display:none">"HALCON"</span>, <span data-if="hdevelop" style="display:inline">'UDP'</span><span data-if="c" style="display:none">"UDP"</span><span data-if="cpp" style="display:none">"UDP"</span><span data-if="com" style="display:none">"UDP"</span><span data-if="dotnet" style="display:none">"UDP"</span><span data-if="python" style="display:none">"UDP"</span>, <span data-if="hdevelop" style="display:inline">'TCP'</span><span data-if="c" style="display:none">"TCP"</span><span data-if="cpp" style="display:none">"TCP"</span><span data-if="com" style="display:none">"TCP"</span><span data-if="dotnet" style="display:none">"TCP"</span><span data-if="python" style="display:none">"TCP"</span>, <span data-if="hdevelop" style="display:inline">'HALCON4'</span><span data-if="c" style="display:none">"HALCON4"</span><span data-if="cpp" style="display:none">"HALCON4"</span><span data-if="com" style="display:none">"HALCON4"</span><span data-if="dotnet" style="display:none">"HALCON4"</span><span data-if="python" style="display:none">"HALCON4"</span>, <span data-if="hdevelop" style="display:inline">'UDP4'</span><span data-if="c" style="display:none">"UDP4"</span><span data-if="cpp" style="display:none">"UDP4"</span><span data-if="com" style="display:none">"UDP4"</span><span data-if="dotnet" style="display:none">"UDP4"</span><span data-if="python" style="display:none">"UDP4"</span>, <span data-if="hdevelop" style="display:inline">'TCP4'</span><span data-if="c" style="display:none">"TCP4"</span><span data-if="cpp" style="display:none">"TCP4"</span><span data-if="com" style="display:none">"TCP4"</span><span data-if="dotnet" style="display:none">"TCP4"</span><span data-if="python" style="display:none">"TCP4"</span>, <span data-if="hdevelop" style="display:inline">'HALCON6'</span><span data-if="c" style="display:none">"HALCON6"</span><span data-if="cpp" style="display:none">"HALCON6"</span><span data-if="com" style="display:none">"HALCON6"</span><span data-if="dotnet" style="display:none">"HALCON6"</span><span data-if="python" style="display:none">"HALCON6"</span>, <span data-if="hdevelop" style="display:inline">'UDP6'</span><span data-if="c" style="display:none">"UDP6"</span><span data-if="cpp" style="display:none">"UDP6"</span><span data-if="com" style="display:none">"UDP6"</span><span data-if="dotnet" style="display:none">"UDP6"</span><span data-if="python" style="display:none">"UDP6"</span>, <span data-if="hdevelop" style="display:inline">'TCP6'</span><span data-if="c" style="display:none">"TCP6"</span><span data-if="cpp" style="display:none">"TCP6"</span><span data-if="com" style="display:none">"TCP6"</span><span data-if="dotnet" style="display:none">"TCP6"</span><span data-if="python" style="display:none">"TCP6"</span>, <span data-if="hdevelop" style="display:inline">'utf8'</span><span data-if="c" style="display:none">"utf8"</span><span data-if="cpp" style="display:none">"utf8"</span><span data-if="com" style="display:none">"utf8"</span><span data-if="dotnet" style="display:none">"utf8"</span><span data-if="python" style="display:none">"utf8"</span>, <span data-if="hdevelop" style="display:inline">'locale'</span><span data-if="c" style="display:none">"locale"</span><span data-if="cpp" style="display:none">"locale"</span><span data-if="com" style="display:none">"locale"</span><span data-if="dotnet" style="display:none">"locale"</span><span data-if="python" style="display:none">"locale"</span>, <span data-if="hdevelop" style="display:inline">'ignore'</span><span data-if="c" style="display:none">"ignore"</span><span data-if="cpp" style="display:none">"ignore"</span><span data-if="com" style="display:none">"ignore"</span><span data-if="dotnet" style="display:none">"ignore"</span><span data-if="python" style="display:none">"ignore"</span>, <span data-if="hdevelop" style="display:inline">'true'</span><span data-if="c" style="display:none">"true"</span><span data-if="cpp" style="display:none">"true"</span><span data-if="com" style="display:none">"true"</span><span data-if="dotnet" style="display:none">"true"</span><span data-if="python" style="display:none">"true"</span>, <span data-if="hdevelop" style="display:inline">'false'</span><span data-if="c" style="display:none">"false"</span><span data-if="cpp" style="display:none">"false"</span><span data-if="com" style="display:none">"false"</span><span data-if="dotnet" style="display:none">"false"</span><span data-if="python" style="display:none">"false"</span></p>
</div>
  <div class="par">
<div class="parhead">
<span id="AcceptingSocket" class="parname"><b><code><span data-if="hdevelop" style="display:inline">AcceptingSocket</span><span data-if="c" style="display:none">AcceptingSocket</span><span data-if="cpp" style="display:none">AcceptingSocket</span><span data-if="com" style="display:none">AcceptingSocket</span><span data-if="dotnet" style="display:none">acceptingSocket</span><span data-if="python" style="display:none">accepting_socket</span></code></b> (output_control)  </span><span>socket <code>→</code> <span data-if="dotnet" style="display:none"><a href="HSocket.html">HSocket</a>, </span><span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">HHandle</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (handle)</span><span data-if="dotnet" style="display:none"> (<i>IntPtr</i>)</span><span data-if="cpp" style="display:none"> (<i>HHandle</i>)</span><span data-if="c" style="display:none"> (<i>handle</i>)</span></span>
</div>
<p class="pardesc">套接字号码。</p>
</div>
<h2 id="sec_example_all">例程 (HDevelop)</h2>
<pre class="example">
* Process 1
dev_set_colored (12)
open_socket_accept (3000, [], [], AcceptingSocket)
* Busy wait for an incoming connection
dev_error_var (Error, 1)
dev_set_check ('~give_error')
OpenStatus := 5
while (OpenStatus != 2)
    socket_accept_connect (AcceptingSocket, 'false', Socket)
    OpenStatus := Error
    wait_seconds (0.2)
endwhile
dev_set_check ('give_error')
* Connection established
receive_image (Image, Socket)
threshold (Image, Region, 0, 63)
send_region (Region, Socket)
receive_region (ConnectedRegions, Socket)
area_center (ConnectedRegions, Area, Row, Column)
send_tuple (Socket, Area)
send_tuple (Socket, Row)
send_tuple (Socket, Column)
close_socket (Socket)
close_socket (AcceptingSocket)

* Process 2
dev_set_colored (12)
open_socket_connect ('localhost', 3000, [], [], Socket)
read_image (Image, 'fabrik')
send_image (Image, Socket)
receive_region (Region, Socket)
connection (Region, ConnectedRegions)
send_region (ConnectedRegions, Socket)
receive_tuple (Socket, Area)
receive_tuple (Socket, Row)
receive_tuple (Socket, Column)
close_socket (Socket)
</pre>
<h2 id="sec_successors">可能的后置算子</h2>
<p>
<code><a href="socket_accept_connect.html"><span data-if="hdevelop" style="display:inline">socket_accept_connect</span><span data-if="c" style="display:none">socket_accept_connect</span><span data-if="cpp" style="display:none">SocketAcceptConnect</span><span data-if="com" style="display:none">SocketAcceptConnect</span><span data-if="dotnet" style="display:none">SocketAcceptConnect</span><span data-if="python" style="display:none">socket_accept_connect</span></a></code>
</p>
<h2 id="sec_see">参考其它</h2>
<p>
<code><a href="open_socket_connect.html"><span data-if="hdevelop" style="display:inline">open_socket_connect</span><span data-if="c" style="display:none">open_socket_connect</span><span data-if="cpp" style="display:none">OpenSocketConnect</span><span data-if="com" style="display:none">OpenSocketConnect</span><span data-if="dotnet" style="display:none">OpenSocketConnect</span><span data-if="python" style="display:none">open_socket_connect</span></a></code>, 
<code><a href="close_socket.html"><span data-if="hdevelop" style="display:inline">close_socket</span><span data-if="c" style="display:none">close_socket</span><span data-if="cpp" style="display:none">CloseSocket</span><span data-if="com" style="display:none">CloseSocket</span><span data-if="dotnet" style="display:none">CloseSocket</span><span data-if="python" style="display:none">close_socket</span></a></code>, 
<code><a href="get_socket_param.html"><span data-if="hdevelop" style="display:inline">get_socket_param</span><span data-if="c" style="display:none">get_socket_param</span><span data-if="cpp" style="display:none">GetSocketParam</span><span data-if="com" style="display:none">GetSocketParam</span><span data-if="dotnet" style="display:none">GetSocketParam</span><span data-if="python" style="display:none">get_socket_param</span></a></code>, 
<code><a href="set_socket_param.html"><span data-if="hdevelop" style="display:inline">set_socket_param</span><span data-if="c" style="display:none">set_socket_param</span><span data-if="cpp" style="display:none">SetSocketParam</span><span data-if="com" style="display:none">SetSocketParam</span><span data-if="dotnet" style="display:none">SetSocketParam</span><span data-if="python" style="display:none">set_socket_param</span></a></code>, 
<code><a href="send_image.html"><span data-if="hdevelop" style="display:inline">send_image</span><span data-if="c" style="display:none">send_image</span><span data-if="cpp" style="display:none">SendImage</span><span data-if="com" style="display:none">SendImage</span><span data-if="dotnet" style="display:none">SendImage</span><span data-if="python" style="display:none">send_image</span></a></code>, 
<code><a href="receive_image.html"><span data-if="hdevelop" style="display:inline">receive_image</span><span data-if="c" style="display:none">receive_image</span><span data-if="cpp" style="display:none">ReceiveImage</span><span data-if="com" style="display:none">ReceiveImage</span><span data-if="dotnet" style="display:none">ReceiveImage</span><span data-if="python" style="display:none">receive_image</span></a></code>, 
<code><a href="send_region.html"><span data-if="hdevelop" style="display:inline">send_region</span><span data-if="c" style="display:none">send_region</span><span data-if="cpp" style="display:none">SendRegion</span><span data-if="com" style="display:none">SendRegion</span><span data-if="dotnet" style="display:none">SendRegion</span><span data-if="python" style="display:none">send_region</span></a></code>, 
<code><a href="receive_region.html"><span data-if="hdevelop" style="display:inline">receive_region</span><span data-if="c" style="display:none">receive_region</span><span data-if="cpp" style="display:none">ReceiveRegion</span><span data-if="com" style="display:none">ReceiveRegion</span><span data-if="dotnet" style="display:none">ReceiveRegion</span><span data-if="python" style="display:none">receive_region</span></a></code>, 
<code><a href="send_tuple.html"><span data-if="hdevelop" style="display:inline">send_tuple</span><span data-if="c" style="display:none">send_tuple</span><span data-if="cpp" style="display:none">SendTuple</span><span data-if="com" style="display:none">SendTuple</span><span data-if="dotnet" style="display:none">SendTuple</span><span data-if="python" style="display:none">send_tuple</span></a></code>, 
<code><a href="receive_tuple.html"><span data-if="hdevelop" style="display:inline">receive_tuple</span><span data-if="c" style="display:none">receive_tuple</span><span data-if="cpp" style="display:none">ReceiveTuple</span><span data-if="com" style="display:none">ReceiveTuple</span><span data-if="dotnet" style="display:none">ReceiveTuple</span><span data-if="python" style="display:none">receive_tuple</span></a></code>, 
<code><a href="send_data.html"><span data-if="hdevelop" style="display:inline">send_data</span><span data-if="c" style="display:none">send_data</span><span data-if="cpp" style="display:none">SendData</span><span data-if="com" style="display:none">SendData</span><span data-if="dotnet" style="display:none">SendData</span><span data-if="python" style="display:none">send_data</span></a></code>, 
<code><a href="receive_data.html"><span data-if="hdevelop" style="display:inline">receive_data</span><span data-if="c" style="display:none">receive_data</span><span data-if="cpp" style="display:none">ReceiveData</span><span data-if="com" style="display:none">ReceiveData</span><span data-if="dotnet" style="display:none">ReceiveData</span><span data-if="python" style="display:none">receive_data</span></a></code>
</p>
<h2 id="sec_module">模块</h2>
<p>
Foundation</p>
<!--OP_REF_FOOTER_START-->
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